Technologies for Information System Infrastructure Construction Based onAutonomous Decentralized System

在本研究项目中，为了满足快速变化的环境中用户对信息服务的需求，提出了社区架构。每个用户基于他们的物理位置、时间和要提供的服务类型，自主地和动态地与其他用户形成本地社区。基于这一概念和体系结构，提出了社区通信和信息处理技术。在分散的环境中，每个社区成员所请求的服务、功能和信息都是动态变化的。自治分散系统的概念是，即使某些子系统发生故障或修复，整个系统的运行也是有保障的。在此基础上，提出了面向数据的系统体系结构。在该系统中，可以通过逐步与其他子系统共享功能和信息来实现协作和高保障的通信和信息处理。在社区系统中，通信…更多的区域根据请求的服务级别自主确定。用户发送搜索服务提供商的服务请求，然后在网络中逐步广播该请求。当服务提供商接收到请求消息时，它在请求区中广播回复消息。回复消息的速度比请求消息的速度快。实现了回复消息对请求消息的捕获，并根据请求级别的异构性动态构建社区服务区。可以根据服务提供者和用户分布的变化情况动态重构服务信息分发和共享的社区服务区。即使一些社区成员可能出现故障，也可以通过自主协调技术在一定区域内持续分发服务信息。为保证服务质量及其保证，每个成员通过与其他成员协作自主调整自己的进程负载，实现了自治分散式社区系统平台。在该平台的基础上，通过互联网进行了加入实验。结果证明了所提出的体系结构和技术的有效性，达到了研究课题的目的。较少

In this research project, to meet users required information service in rapidly changing environment, community architecture has been proposed. Each user autonomously and dynamically forms a local community with other users based on their physical locations, time and the kind of service to be provided. Based on this concept and architecture, community communication and information process technologies are proposed.1. In the decentralized environment, the requested service, function and information of each community member are changing dynamically. The concept of autonomous decentralized system is that even if some subsystems may be failed or repaired, the operation of whole system can be assured. Based on this concept, data-oriented system architecture is proposed. In the system, the cooperation and high-assurance communication and information process can be implemented by gradually sharing the function and information with other subsystems.2. In the community system, the communication … More area is autonomously determined according to the requested service level. The user sends a service request to search a service provider, and then the request is gradually broadcasted in the network. When a service provider receives a request message, it broadcasts the reply message in request area. The speed of reply message is faster than request message. As a result, the reply message can catch the request message, and the community service area can be dynamically constructed based on the heterogeneous request levels.3. The community service area, in which the service information is distributed and shared, can be dynamically reconstructed according to the changing conditions of service provider and users distribution. Even if some community members may be failed, the service information can be continuously distributed in the certain area by the autonomous coordination technology. To guarantee the quality of service and its assurance, each member autonomously adjust its process load by cooperating with other members.The autonomous decentralized community system platform has been implemented. Based on this platform, the join experiments were performed through the Internet. As a result, the effectiveness of proposed architecture and technologies is proved, and the objective of the research project is achieved. Less